A demonstration circuit to support e-learning on IEEE 1149.1/4 infrastructures

2014 11th International Conference on Remote Engineering and Virtual Instrumentation (REV) Pub Date : 1900-01-01 DOI:10.1109/rev.2014.6784204

J. Vilhena, A. Fidalgo, M. Felgueiras

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Abstract

Test and debug tasks are part of the life cycle in any electronic circuit. The IEEE1149.1 infrastructure was developed to support structural test operations on electronic digital boards and was rapidly accepted. Later, to extend the same functionalities for analog and mixed-signal boards was developed the IEEE1149.4. Despite being a standard its acceptance has been slower and is relatively unknown when compared with the digital counterpart. Even worse, teaching subjects related with this last infrastructure are a tough task because has been produced only one compliant IC and none commercial demonstration boards are available. This work presents a teaching oriented mixed-signal circuit as part of a remote access platform to demonstrate IEEE1149.1/4 capabilities. The circuit was specially designed to cover several possibilities to perform and compare observation and control operations through the referred infrastructures. An applet allows remotely configuring the test/debug infrastructures according the intended state.

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在IEEE 1149.1/4基础架构上支持电子学习的演示电路

测试和调试任务是任何电子电路生命周期的一部分。IEEE1149.1基础设施的开发是为了支持电子数字板的结构测试操作，并迅速被接受。后来，为了将相同的功能扩展到模拟和混合信号板，开发了IEEE1149.4。尽管是一种标准，但与数字版本相比，它的接受速度较慢，而且相对未知。更糟糕的是，与最后一个基础设施相关的教学科目是一项艰巨的任务，因为只生产了一个兼容的IC，没有商业演示板可用。这项工作提出了一个面向教学的混合信号电路，作为远程访问平台的一部分，以演示IEEE1149.1/4功能。该电路是专门设计的，以涵盖通过上述基础设施执行和比较观察和控制业务的几种可能性。applet允许根据预期状态远程配置测试/调试基础结构。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2014 11th International Conference on Remote Engineering and Virtual Instrumentation (REV)

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